Page 211 of 498
209 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
AUX mode selector
225
215
2
Single CD mode selector 
227
3
Radio mode selector
4
Mute function (radio)
219
Pause (CD)
231
5
Volume distribution
213
6
Sound settings
211
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory 
(telephone) in descending 
order
a
Accepting a call
(telephone)
237
b
Telephone mode selector
232
c
Speed dialing memory 
(telephone) in ascending 
order
233
d
Terminating a call
(telephone)
237
e
CD slot
f
CD ejection
227
Item
Page
g
Soft keys
210
h
Volume
211
j
Switching on/off
210
k
Manual tuning / seek 
tuning (radio)
217
Track search, reverse (CD)
230
l
Manual tuning / seek 
tuning (radio)
217
Track search,
fast forward (CD)
230 
     
        
        Page 214 of 498

212 Controls in detailAudio systemAdjusting treble
Press O button repeatedly until TREBLE
 appears in the display.
Press 
+ or
– soft key to increase or de-
crease tone level accordingly.
or
Press 
RES
 soft key briefly to reset treble 
tones to their center level.
The radio switches back to the stan-
dard radio menu eight seconds after 
the last soft key is pressed.Sound system*
You can either program the sound settings 
manually (
page 211) or choose settings 
via preset sound characteristics.
You can select from among the following 
settings:
STANDARD
: conventional stereo sound.
SURROUND
: the sound is set for better 
three-dimensional acoustic character-
istics.
SPEECH
: the sound is optimized for the 
spoken word.
Press O button repeatedly until STANDARD
, SURROUND
 or 
SPEECH
 appears 
in the display.
Press X or Y soft key repeatedly 
until the desired sound setting has 
been reached.
The sound is set accordingly.
or
Press 
RES
 soft key briefly.The sound setting is reset depending 
on the sound source activated.
Radio mode: 
STANDARD
CD/AUX mode: 
SURROUND
Telephone: 
SPEECH
The radio switches back to the stan-
dard radio menu eight seconds after 
the last soft key is pressed. 
     
        
        Page 215 of 498

213 Controls in detail
Audio system
Returning sound functions to factory 
settings
Press O button to call up settings 
menu in the display.
Press 
RES
 soft key briefly; the respec-
tive sound function is reset to its center 
level.
or
Press and hold 
RES
 soft key until 
RESET
 
appears in the display.
The sound settings for bass and treble 
are returned to their center level and 
the volume is set to a predefined level.Vehicles with sound system*:
The sound setting is reset depending 
on the sound source activated.
Radio mode: 
STANDARD
CD/AUX mode: 
SURROUND
Telephone: 
SPEECH
The radio switches back to the stan-
dard radio menu four seconds after the 
last soft key is pressed.
Adjusting volume distribution
Call up fader and balance functions by 
pressing the P button.
Fader
Press P button repeatedly until FADER
 appears in the display.
Press V or W soft key.
The volume is distributed accordingly 
between the front and rear of the vehi-
cle.
or
Press 
RES
 soft key briefly.
The fader is reset to its center level.
The radio switches back to the stan-
dard radio menu eight seconds after 
the last soft key is pressed. 
     
        
        Page 217 of 498

215 Controls in detail
Audio system
Connecting an external audio source 
(AUX) to the radio*
An optional dealer-installed cinch-connec-
tor* for connecting an external audio 
source may become available for your ve-
hicle model. Feature description is based 
on preliminary information at time of print-
ing. Contact an authorized Mercedes-Benz 
Center for availability.
You can adjust the volume (
page 211), 
the sound settings (
page 211) and the 
volume distribution (page 213) for the 
AUX input.
Calling up AUX mode
Press and hold Q button until AUX 
appears in the display.
Canceling AUX mode
Press any audio source button.
Radio operation
Selecting radio mode
Press b button.
Calling up wavebands
You can choose from among the FM, AM 
and WB wavebands.
Weather band (
page 219).Calling up wavebands for radios without 
SAT*
Press 
FM or 
AM soft key to switch be-
tween FM and AM.
The FM and AM wavebands are called 
up one after another.
or
Press 
WB soft key.
The weather band menu is called up.
The waveband currently selected 
appears in the upper left-hand corner 
of the display.
iFM waveband: 87.7......107.9 MHz
AM waveband: 530......1 710 KHz 
     
        
        Page 280 of 498
278 Controls in detailUseful featuresElectrical outlet in the rear passenger compartment
1Electrical outlet
2Cover
Switch on ignition (
page 33).
Pull at top of cover2.
Flip cover1 to the left and insert 
electrical plug (cigarette lighter type).
Floormats*
Removing
Pull floormats off of retainer pins2 in 
direction of arrow1.
Remove the floormats.
Installing
Lay down the floormat.
Press the floormat eyelets4 onto re-
tainer pins5 in direction of arrow3.
iThe electrical outlet can be used to 
accommodate electrical consumers 
(e.g. air pump, auxiliary lamps) up to a 
maximum of 180 W.
Warning!
G
Whenever you are using floormats, make 
sure there is enough clearance and that the 
floormats are securely fastened.
Floormats should always be securely fas-
tened using eyelets
4
 and retainer 
pins
5
.
Before driving off, check that the floormats 
are securely in place and adjust them if nec-
essary. A loose floormat could slip and 
hinder proper functioning of the pedals. 
     
        
        Page 304 of 498

302 OperationDriving instructionsStanding water
Passenger compartmentDriving abroad
Abroad, there is an extensive 
Mercedes-Benz service network at your 
disposal. If you plan to drive into areas 
which are not listed in the index of your 
Mercedes-Benz Center directory, you 
should request pertinent information from 
an authorized Mercedes-Benz Center.Control and operation of radio trans-
mitters
COMAND*, radio and telephone*
!Do not drive through flooded areas or 
water of unknown depth. Before driving 
through water, determine its depth. 
Never accelerate before driving into 
water. The bow wave could force water 
into the engine and auxiliary equip-
ment, thus damaging them.
If you must drive through standing wa-
ter, drive slowly to prevent water from 
entering the passenger compartment 
or the engine compartment. Water in 
these areas could cause damage to 
electrical components or wiring of the 
engine or transmission, or could result 
in water being ingested by the engine 
through the air intake, causing severe 
internal engine damage. Any such dam-
age is not covered by the 
Mercedes-Benz Limited Warranty.
Warning!
G
Always fasten items being carried as 
securely as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown 
around inside the vehicle, and cause injury 
to vehicle occupants unless the items are 
securely fastened in the vehicle.
The trunk is the preferred place to carry 
objects.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle safely. 
Only operate the COMAND (Cockpit Man-
agement and Data System), radio or tele-
phone
1 if road, weather and traffic 
conditions permit.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet 
(approximately 14 m) every second.
1Observe all legal requirements. 
     
        
        Page 432 of 498
430 Practical hintsFusesAids for changing fuses
Fuse chart
The fuse chart is found in the main fuse 
box in the passenger compartment 
(page 430). The amperages of the fuses 
are also given there.
Spare fuses
Spare fuses are found in the vehicle tool kit 
in the spare wheel well (
page 390).
Fuse extractor
The fuse extractor is located in the cover of 
the auxiliary fuse box in the trunk 
(
page 432).Main fuse box in passenger 
compartment
The main fuse box is located in the passen-
ger compartment on the driver’s side of 
the cockpit.
1Main fuse box coverOpening
Open the driver’s door.
Pull fuse box cover1 open with a 
screw driver or similar tool (see arrow).
Remove fuse box cover1 rearward.
Closing
Attach fuse box cover1 in the front.
Fold fuse box cover1 in until it engag-
es. 
     
        
        Page 465 of 498

463 Index
Auto-dimming rear view mirrors 178
Automatic central locking
Activating/deactivating 
(control system) 158
Automatic climate control 194
Activating 195
Adjusting air distribution 198
Air recirculation mode 201
Deactivating 195
Defrosting 200
Rear window defroster 183
Setting the temperature 197
Automatic headlamp mode 125
Automatic lighting control
Activating 132
Deactivating 132
Automatic locking when driving 110
Automatic shift program 170
Automatic time change 
(Daylight Saving Time 
(DST) summer/winter) 153Automatic transmission 165
Accelerator position 171
Comfort program mode 170
Emergency operation 
(Limp Home Mode) 177
Fluid level 312
Gear ranges 168
Gear selector lever 165
Gear selector lever position 165, 169
Gear shifting malfunctions 177
Kickdown 171
Manual shifting 167
One-touch gearshifting 167
Program mode selector switch 170
Starting the engine 47
Transmission fluid 312
Auxiliary fuse box 432B
Backrest
Folding forward 268
Folding rearward 269
Backup lamp 405, 410
Bulbs 405
Back-up lamps
Bulbs 404
Bar 338
BAS 85, 455
Messages in display 366
Batteries, SmartKey
Check lamp 97, 102
Checking 97, 103
Replacing 402
Batteries, SmartKey with KEYLESS-GO*
Check lamp 97, 102
Checking 97, 103
Replacing 403
Battery discharged
Jump starting 423